diff --git a/solr/core/src/test-files/runtimecode/MyPatternReplaceCharFilterFactory.java b/solr/core/src/test-files/runtimecode/MyPatternReplaceCharFilterFactory.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/MyPatternReplaceCharFilterFactory.java
rename to solr/core/src/test-files/runtimecode/MyPatternReplaceCharFilterFactory.java.txt
diff --git a/solr/core/src/test-files/runtimecode/MyPlugin.java b/solr/core/src/test-files/runtimecode/MyPlugin.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/MyPlugin.java
rename to solr/core/src/test-files/runtimecode/MyPlugin.java.txt
diff --git a/solr/core/src/test-files/runtimecode/MyTextField.java b/solr/core/src/test-files/runtimecode/MyTextField.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/MyTextField.java
rename to solr/core/src/test-files/runtimecode/MyTextField.java.txt
diff --git a/solr/core/src/test-files/runtimecode/MyWhitespaceTokenizerFactory.java b/solr/core/src/test-files/runtimecode/MyWhitespaceTokenizerFactory.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/MyWhitespaceTokenizerFactory.java
rename to solr/core/src/test-files/runtimecode/MyWhitespaceTokenizerFactory.java.txt
diff --git a/solr/core/src/test-files/runtimecode/RuntimeLibReqHandler.java b/solr/core/src/test-files/runtimecode/RuntimeLibReqHandler.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/RuntimeLibReqHandler.java
rename to solr/core/src/test-files/runtimecode/RuntimeLibReqHandler.java.txt
diff --git a/solr/core/src/test-files/runtimecode/RuntimeLibResponseWriter.java b/solr/core/src/test-files/runtimecode/RuntimeLibResponseWriter.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/RuntimeLibResponseWriter.java
rename to solr/core/src/test-files/runtimecode/RuntimeLibResponseWriter.java.txt
diff --git a/solr/core/src/test-files/runtimecode/RuntimeLibSearchComponent.java b/solr/core/src/test-files/runtimecode/RuntimeLibSearchComponent.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/RuntimeLibSearchComponent.java
rename to solr/core/src/test-files/runtimecode/RuntimeLibSearchComponent.java.txt
diff --git a/solr/core/src/test-files/runtimecode/TestURP.java b/solr/core/src/test-files/runtimecode/TestURP.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/TestURP.java
rename to solr/core/src/test-files/runtimecode/TestURP.java.txt
diff --git a/solr/core/src/test-files/runtimecode/TestVersionedURP.java b/solr/core/src/test-files/runtimecode/TestVersionedURP.java.txt
similarity index 100%
rename from solr/core/src/test-files/runtimecode/TestVersionedURP.java
rename to solr/core/src/test-files/runtimecode/TestVersionedURP.java.txt